I’m using the original AK to M4 Stock Adapter by Rifle Dynamics for a long time, but recently I have received their Gen II of this product. There are few major changes to it when compared to Gen I. First, RD includes now shims for 2 main screws – this was done to prevent possibility of over-torqueing screws. It is worth to note, that on my AKM, I had to slightly file these shims because they created gap between receiver and the adapter. No big deal, since these are made of polymer, they are easy to work on. But most important change was applied to the angle in which stock adapter sits on the rifles now.
That angle dropped little bit – this was done because with previous generation, some users complained that stock was sitting little too high and they couldn’t use irons in comfortable manner. When it wasn’t really a problem for me, I do understand where people are coming from on this issue. New version of RD M4 stock adapter solves this problem and your cheek will sit lower now. However this may pose problems for those with smaller bones in their faces and they may have to use cheek riser if necessary. We are made differently by God, so it is hard to keep everyone happy…;-)
We do offer RD M4 stock adapter at Union discount price at our store.
Below is our older review of this product.
– Rob Ski
And this is how my AKM clone looks like it with it now.